Magnus - Shazam for art
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
Masterworks - Invest in the world’s most valuable paintings.
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Artsy - A global platform for discovering and collecting art.
PrestaShop - Create your online store with PrestaShop's free shopping cart software. Build an ecommerce website for free and start selling online with hundreds of powerful features.