Moscow is rich in fascinating architectural heritage, but most of these buildings can be visited only a few times a year, on specific dates tied to celebrations.

The good news is that there is a program to develop virtual tours of Moscow's mansions.

Now you can take your time studying the details of legendary works by F. Shekhtel, A. Grigoriev, L. Kekushev, and others.

Take, for example, the Derozhinskaya Mansion in Kropotkinsky Lane.

Built in the late 19th century, it is less famous than other buildings designed by F. Shekhtel, but no less interesting.

A giant window spanning the entire wall, a huge marble fireplace, and all the furniture made to F. Shekhtel's own drawings.

Or the Korobkova Mansion on Pyatnitskaya, with caryatids, wreaths, and mascarons on the façade, and the lion on the turret that is so typical of L. Kekushev.

Don't miss the chance to immerse yourself in the history of Moscow Art Nouveau and draw inspiration from this remarkable architecture.

One of the most Instagrammable spots in Paris — the Hotel San Regis — was built as a private residence in the late 19th century. Set in a prime location off the Champs-Élysées, it was sold back in 1923 and became a luxury hotel, a hub of fashion and high-society pleasures.

In 1985, the current owners renovated the hotel with antique furniture, vintage wallpaper and period furnishings.

An Art Nouveau design with flowing lines and stained glass. An elegant entrance group — a wrought-iron canopy with a large overhang on brackets.