SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT


                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


  Date of Report (Date of earliest event reported) June 10, 1998 (May 12, 1998)



                           AMERICAN TOWER CORPORATION
             (Exact name of registrant as specified in its Charter)

         Delaware                   001-14195                   65-0723837
(State or other jurisdiction       (Commission                 (IRS Employer
    of incorporation)              File Number)              Identification No.)

                 116 Huntington Avenue
                 Boston, Massachusetts                    02116
         (Address of principal executive offices)      (Zip Code)

                                 (617) 375-7500
              (Registrant's telephone number, including area code)

                       American Tower Systems Corporation
          (Former name or former address, if changed since last report)










Item 2.  Acquisition or Disposition of Assets.

On June 8, 1998,  American Tower  Corporation  (formerly  American Tower Systems
Corporation,  the "Company")  consummated the  transactions  contemplated by the
Agreement and Plan of Merger (the "Merger  Agreement")  by and between  American
Tower  Systems  Corporation,   a  Delaware   Corporation,   and  American  Tower
Corporation ("ATC"), a Delaware Corporation,  dated as of December 12, 1997, and
as amended as of June 5, 1998,  whereby ATC was merged (the  "Merger")  with and
into  the  Company.  Pursuant  to  the  Merger  Agreement,  the  Company  issued
30,034,750  shares  of Class A  Common  Stock  (including  options  to  purchase
1,252,364 shares) and borrowed  approximately  $57.0 million under the Company's
credit agreement.  The Company paid off approximately  $118.3 million of assumed
debt and $4.5 million of redeemable  preferred  stock assumed in connection with
the Merger.  Upon consummation of the Merger,  the Company changed its name from
American Tower Systems Corporation to American Tower Corporation.

Immediately  following the Merger,  Fred R. Lummis,  the Chief Executive Officer
and  President  of ATC, and Randall  Mays,  the Chief  Financial  Officer and an
Executive Vice President of Clear Channel  Communications,  Inc. were elected to
the Board of Directors of the Company and Joseph L. Winn,  the  Company's  Chief
Financial Officer and Treasurer, resigned as a director of the Company.

ATC is a leading  independent  owner and  operator  of  wireless  Communications
towers  with  approximately  900  towers  (including  pending   acquisitions  of
approximately  60 towers) in 32 states,  of which  approximately  125 towers are
managed for a third party owner.

See Item 7. below for financial statement and exhibit information.


Item 5. Other Events.

On June 5, 1998,  the Company became listed on the New York Stock Exchange under
the  symbol  "AMT",  as a result of a  distribution  of its shares by its former
parent, American Radio Systems Corporation,  which completed its merger with CBS
Corporation as of June 4, 1998.

On June 4, 1998,  the Company  privately  placed shares of it Series  Redeemable
Pay-In-Kind Preferred Stock, having an initial liquidation  preference of $300.0
million (the "Interim Preferred Stock"), to certain  institutional  investors in
order to finance the Company's obligation to CBS Corporation with respect to the
CBS merger tax  reimbursement.  Proceeds of the public equity offering described
below will be used to redeem the  Interim  Preferred  Stock at a price  equal to
101% of the then  aggregate  liquidation  preference  together  with accrued and
unpaid dividends.






On May 12, 1998, the Company filed with the  Securities and Exchange  Commission
(the  "Commission")  a  registration  statement  relating to the  offering  (the
"Offering")  of an aggregate of 23,619,871  shares of Class A Common  Stock,  of
which 20,000,000 shares are to be sold on behalf of the Company. Proceeds of the
Company's  offering will be used to redeem the Interim  Preferred Stock that was
issued on June 4, 1998, and to reduce bank  borrowings.  The Offering is subject
to various conditions,  including prevailing market conditions. The registration
statement  relating to these  securities  has been filed with the Commission but
has not yet become effective. These securities may not be sold nor may offers to
buy be accepted prior to the time the registration  statement becomes effective.
This communication  shall not constitute an offer to sell or the solicitation of
an offer to buy nor shall there be any sale of these  securities in any state in
which such offer,  solicitation  or sale would be unlawful prior to registration
or  qualification  under the  securities  laws of any such state.  Copies of the
Prospectus  relating to the  Offering may be obtained  from Credit  Suisse First
Boston,  Prospectus  Department,  11 Madison  Avenue,  New York, New York 10010,
(212) 325-2000.


On May 21, 1998 American Tower Systems (Delaware),  Inc. ("ATSI"),  a subsidiary
of the Company  consummated the Asset Purchase Agreement dated as of January 23,
1998, by and among ATSI, Midcontinent Media, Inc. a South Dakota corporation and
a wholly-owned  subsidiary of Midcontinent  ("MTC"), Wit Communications,  Inc. a
Delaware  Corporation and wholly-owned  subsidiary of MTC ("WIT") and Washington
International  Teleport, Inc. a Delaware Corporation and wholly-owned subsidiary
of WIT, pursuant to which ATSI acquired  substantially all the assets of WIT for
an aggregate  purchase  price of $30.5  million.  The  acquisition  was financed
through borrowings under the Company's credit agreement.

WIT  is a  local  provider  of  video  transport  operations,  transmitting  and
receiving voice, video and data by satellite and terrestrial networks.


Item 7.  Financial Statements and Exhibits.

(a)   Financial Statements of business acquired.

Pursuant to Regulation 240.15d-11,  the Company met the Form 8-K requirements to
provide financial statements for the periods specified in Regulation 210.3.05 in
the Company's  Amendment No. 1 to Registration  Statement No.  333-52481 on Form
S-1 as filed on June 1, 1998.  The financial  statements of ATC were provided as
follows:

         Independent Auditors' Report
         Consolidated Balance Sheets as December 31, 1996 and 1997 and March 31,
         1998 (unaudited)
         Consolidated  Statements of Operations for the years ended December 31,
         1995,  1996 and 1997 and three  months  ended  March 31,  1997 and 1998
         (unaudited)
         Consolidated  Statements  of  Stockholders'  Equity for the years ended
         December 31, 1995,  1996 and 1997 and three months ended March 31, 1998
         (unaudited)
         Consolidated  Statements of Cash Flows for the years ended December 31,
         1995,  1996 and 1997 and three  months  ended  March 31,  1997 and 1998
         (unaudited)
         Notes to Consolidated Financial Statements




         (b)  Unaudited Pro Forma Financial Information.

         Pursuant  to  Regulation  240.15d-11,  the  Company  met the  Form  8-K
         requirements to provide pro forma financial  statements for the periods
         specified in Regulation  210.11.02 and 11.03 in the Company's Amendment
         No. 1 to Registration  Statement No. 333- 52481 on Form S-1 as filed on
         June 1, 1998. The following unaudited pro forma condensed  consolidated
         financial statements were provided in the filing:

         Unaudited Pro Forma Condensed  Consolidated Balance Sheet for the three
         months ended March 31, 1998 
         Unaudited Pro Forma Condensed Consolidated Statements of Operations for
         the three months ended March 31, 1998 and year ended  December 31, 1998
         Notes  to  Unaudited  Pro  Forma   Condensed   Consolidated   Financial
         Statements

         (c)  Exhibits.

         Exhibit 2.1 - First Amendment to Agreement and Plan of Merger, dated as
         of  June  5,  1998,  by  and  among  the  Company  and  American  Tower
         Corporation. (Exhibits omitted)

         Exhibit 2.2 - Agreement  and Plan of Merger,  dated as of December  12,
         1997, by and among the Company and American Tower Corporation.*

         * Filed as Exhibit 2.3 to the Company's  Registration Statement on Form
         S-4 filed on February 10, 1998 (File No. 333-46025).





                                   SIGNATURES


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this  report  to be  signed  on behalf of the
undersigned hereunto duly authorized.


                               AMERICAN TOWER CORPORATION
                               (Registrant)

Date:    June 10, 1998         By: /s/ Justin D. Benincasa
                                  Name: Justin D. Benincasa
                                  Title: Vice President and Corporate Controller