When planning an upcoming visit to Musée d'Orsay, we somehow landed on a ticket booking page at a website for "Feel the City Tours". This may have been a cloned site, designed to look like the original. They did send us a pair of official-looking tickets with barcodes, although the text is in Spanish (we are English speakers).
Now I've learned that this is a scammy company, posing as official ticket sources for several tourist sites, and marking up the prices.
Are the tickets that they sell for Orsay actually valid? Or are they worthless?