Carol Park Mausoleum, Bucharest, Memorial monument in Carol Park, Bucharest, Romania.

The Carol Park Mausoleum is a memorial structure in Bucharest standing 48 meters tall with a distinctive design of black and red granite. Five narrow arches clad in red granite rise from a circular black granite base, forming the central element of this commemorative complex.

The mausoleum was built between 1959 and 1963 to designs by Horia Maicu and Nicolae Cucu on the site of the former Palace of Arts and the Tomb of the Unknown Soldier, inaugurated on 30 December 1963. It held the crypts of Communist leaders such as Gheorghe Gheorghiu-Dej, Petru Groza and Constantin Ion Parhon. In 1991 the remains were exhumed and moved to other cemeteries, and the Tomb of the Unknown Soldier was returned to the park on 26 October 1991.

The mausoleum was inaugurated in 1963 as the Monument of the Heroes of the Struggle for the Freedom of the People and the Fatherland, for Socialism, honoring socialist militants. Its interior rotunda, lined with red granite and covered by a gold-leaf mosaic brought from Italy, held the crypts of Petru Groza, Gheorghe Gheorghiu-Dej and Constantin Ion Parhon. After 1991 the remains were exhumed and moved to other cemeteries; Ana Pauker's urn was taken by her family to Israel. Since 2006 the Tomb of the Unknown Soldier has stood again in front of the building.

The mausoleum stands on the Filaret hill plateau in Carol Park, reached by broad shallow steps; low stone posts linked by chains line the platform edge. The black granite base has a gold-framed double door with a grille and a small gold emblem above it. The site is a memorial ground, so access to the rotunda may be restricted; no guided tours are documented.

The red and black granite cladding was imported from Sweden, and the interior dome mosaic, set in gold leaf, was brought from Italy. The architects Horia Maicu and Nicolae Cucu reused about 99% of Alexandru Tzigara-Samurcaș's wartime memorial project, supervised by Marshal Ion Antonescu, to meet a short deadline.