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): July 16, 1998 (June 16, 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)



Item 5.  Other Events.

1. New Credit  Facilities.  On June 16, 1998,  American Tower  Corporation ( the
"Company"  or  "ATC")  entered  into new loan  arrangements  (the  "'New  Credit
Facilities"')  with its senior lenders  pursuant to which the maximum  borrowing
capacity of American Tower Systems (Delaware),  Inc., a wholly-owned  subsidiary
of ATC and one of the operating  subsidiaries of ATC and American Tower Systems,
L.P., an indirect wholly-owned  subsidiary of ATC and one of the other operating
subsidiaries of ATC  (collectively,  the "Borrower  Subsidiaries") was increased
from  $400.0  million to $900.0  million,  subject to  compliance  with  certain
financial  ratios,  of which $125.0 million is outstanding in the form of a term
loan, and ATC (the parent holding company) borrowed an additional $150.0 million
in the  form of a term  loan.  For more  information  regarding  the New  Credit
Facilities,  see Exhibits 10.1, 10.2A and 10.2B, which were filed as exhibits to
Amendment  No. 2 to ATC's  Registration  Statement on Form S-1 filed on June 30,
1998 (File No. 333-52481).

      The loans to ATC and the Borrower  Subsidiaries are  cross-guaranteed  and
cross-collateralized by liens on, among other things, all leases of tower space,
contracts  relating  to the  management  of towers for  others,  cash,  accounts
receivable,  capital stock (or other equity interests) and inter-company debt of
all Restricted Subsidiaries (as defined in the New Credit Facilities), inventory
and other personal property, fixtures, intellectual property, as well as certain
fee and leasehold interests, and the proceeds thereof, of ATC and its Restricted
Subsidiaries.  Borrowings  under  the ATC  term  loan  are  subordinated  to the
guaranty by ATC of indebtedness  under the New Credit Facilities of the Borrower
Subsidiaries.

2.  Consummation  of Public  Offering of Class A Common Stock and  Redemption of
Series A Redeemable  Pay-In-Kind  Preferred  Stock. On July 8, 1998, the Company
completed a public offering of 27,861,987  shares of Class A Common Stock,  $.01
par value per share (the "Class A Common  Stock")  (including  2,361,987  shares
sold by the  Company  pursuant  to the  exercise  in  full of the  underwriters'
over-allotment option) at $23.50 per share. Certain selling stockholders sold an
additional  3,874,911  shares in the offering.  Credit  Suisse First Boston,  BT
Alex. Brown,  Lehman Brothers,  Morgan Stanley Dean Witter,  Bear, Stearns & Co.
Inc.,  Merrill Lynch & Co. and Salomon Smith Barney were the underwriters of the
Class A Common  Stock.  The Company  estimates  the net proceeds of the offering
(after deduction of the underwriting  discount and estimated  offering expenses)
to be  approximately  $625.4  million.  The Company  used  approximately  $306.1
million of the net proceeds  from the offering to redeem all of the  outstanding
shares of the Series A Redeemable Pay-In-Kind Preferred Stock at a price of 101%
of the  liquidation  preference  on July 9, 1998.  The balance  was  invested in
short-term   investment  grade  securities  and  will  be  used,  together  with
borrrowings  under the New Credit  Facilities,  to fund future  acquisitions and
construction activities. For more information,  see the ATC press release, dated
July 2, 1998, which is attached herewith as Exhibit 99.


Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits.

      (c) Exhibits.

         Exhibit 2.1    -     Underwriting Agreement,  dated as of July 1,
                              1998, by and among ATC and the  Representatives of
                              the Underwriters.

         Exhibit 10.1   -     Parent Loan Agreement, dated as of June 16,
                              1998, by and among ATC, Toronto Dominion  (Texas),
                              Inc., as Administrative Agent, and the
                              Lenders parties thereto.*


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         Exhibit 10.2A  -     ATS Facility A Loan Agreement, dated as of
                              June  16,  1998,  by  and  among   American  Tower
                              Systems,   L.P.   and   American   Tower   Systems
                              (Delaware),   Inc.,  as  borrowers,   and  Toronto
                              Dominion (Texas),  Inc., as Administrative  Agent,
                              and the Banks parties thereto.**

         Exhibit 10.2B  -     ATS Facility B Loan Agreement, dated as of
                              June  16,  1998,  by  and  among   American  Tower
                              Systems,   L.P.   and   American   Tower   Systems
                              (Delaware),   Inc.,  as  borrowers,   and  Toronto
                              Dominion (Texas),  Inc., as Administrative  Agent,
                              and the Banks parties thereto.***

         Exhibit 99     -     Press Release of ATC, dated July 2, 1998.


         * Filed as  Exhibit  10.1 to  Amendment  No.  2 to  ATC's  Registration
Statement on Form S-1 filed on June 30, 1998 (File No. 333-52481).

         ** Filed as  Exhibit  10.2A to  Amendment  No. 2 to ATC's  Registration
Statement on Form S-1 filed on June 30, 1998 (File No. 333-52481).

         *** Filed as Exhibit  10.2B to  Amendment  No. 2 to ATC's  Registration
Statement on Form S-1 filed on June 30, 1998 (File No. 333-52481).




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                                   SIGNATURES


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


                             AMERICAN TOWER CORPORATION
                             (Registrant)


Date: July 16, 1998          By: /s/ Justin D. Benincasa
                                 Name: Justin D. Benincasa
                                 Title: Vice President and Corporate Controller





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